Directional Sensitivity of a MEMS-Based Fiber-Optic Extrinsic Fabry–Perot Ultrasonic Sensor for Partial Discharge Detection

• Published in: Sensors (Basel, Switzerland) Vol. 18; no. 6; p. 1975
• Main Authors: Si, Wenrong, Fu, Chenzhao, Li, Delin, Li, Haoyong, Yuan, Peng, Yu, Yiting
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 20.06.2018; MDPI
• Subjects: Acoustics; Fabry–Perot; fiber-optic sensors; Fourier transforms; Interferometry; Laboratories; Localization; Microelectromechanical systems; Optics; partial discharges; Photonics; Questioning; Sensors; Ultrasonic imaging; ultrasonic sensor; United States > US; China; fiber-optic sensors; Fabry–Perot; partial discharges; ultrasonic sensor

Extrinsic Fabry–Perot (FP) interferometric sensors are being intensively applied for partial discharge (PD) detection and localization. Previous research work has mainly focused on novel structures and materials to improve the sensitivity and linear response of these sensors. However, the directiona...